| family Nr | COG description | functional class** | gene name | copy nr*** |
| 76 | Ribosomal protein L6P/L9E | J | RplF | 1 |
| 80 | Ribosome recycling factor | J | Frr | 1 |
| 206 | Ribosomal protein L16/L10E | J | RplP | 1 |
| 221 | Seryl-tRNA synthetase | J | SerS | 1.04 |
| 263 | Ribosomal protein S2 | J | RpsB | 1 |
| 314 | Ribosomal protein S12 | J | RpsL | 1.01 |
| 454* | ATPases | CNU | 2.01 | |
| 624 | DNA-directed RNA polymerase, alpha subunit/40 kD subunit | K | RpoA | 1.01 |
| 706 | Predicted GTPase | R | Obg | 1 |
| 816* | Ribosomal protein S3 | J | RpsC | 1.02 |
| 1111 | Translation elongation factors (GTPases) | J | FusA | 1.43 |
| 1421 | Ribosomal protein L27 | J | RpmA | 1 |
| 1460 | Ribosomal protein L15 | J | RplO | 1 |
| 1817 | Type IIA topoisomerase (DNA gyrase/topo II, topoisomerase IV), A subunit | L | GyrA | 1.72 |
| 1836* | membrane GTPase | MT | 1.84 | |
| 1839 | Ribosomal protein L11 | J | RplK | 1.03 |
| 1910 | Preprotein translocase subunit SecY | U | SecY | 1.01 |
| 2107* | Protein chain release factor A + B | J | PrfA + PrfB | 1.76 |
| 2132 | Peptidyl-tRNA hydrolase | J | Pth | 1.03 |
| 2185 | Ribosomal protein L5 | J | RplE | 1.01 |
| 2297 | Ribosomal protein L18 | J | RplR | 1 |
| 2318 | Ribosomal protein S13 | J | RpsM | 1 |
| 2408 | Threonyl-tRNA synthetase | J | ThrS | 1.05 |
| 2696 | Molecular chaperone | O | DnaK | 1.45 |
| 2728 | Predicted S-adenosylmethionine-dependent methyltransferase | M | 1 | |
| 2734 | Ribosomal protein S9 | J | RpsI | 1 |
| 2874 | Ribosomal protein L1 | J | RplA | 1 |
| 3093 | Ribosomal protein L3 | J | RplC | 1 |
| 3192 | Ribosomal protein S4 and related proteins | J | RpsD | 1.04 |
| 3215 | Predicted GTPase, probable translation factor | J | 1 | |
| 3222 | Ribosomal protein L20 | J | RplT | 1 |
| 3235 | Ribosomal protein S7 | J | RpsG | 1.01 |
| 3305 | Ribosomal protein S8 | J | RpsH | 1 |
| 3363 | Leucyl-tRNA synthetase | J | LeuS | 1 |
| 3373 | Adenylate kinase and related kinases | F | Adk | 1.02 |
| 4233 | Type IIA topoisomerase (DNA gyrase/topo II, topoisomerase IV), B subunit | L | GyrB | 1.78 |
| 5731 | Tyrosyl-tRNA synthetase | J | TyrS | 1.08 |
| 8676 | Preprotein translocase subunit SecA (ATPase, RNA helicase) | U | SecA | 1.15 |
| 9296* | DNA-directed RNA polymerase, beta subunit/140 kD subunit + 160kD subunit | K | RpoB + RpoC | 1.97 |
| 11627 | Translation elongation factor Ts | J | Tsf | 1 |
| 15111 | Translation elongation factor P (EF-P)/translation initiation factor 5A (eIF-5A) | J | Efp | 1.22 |
| 17179* | Celenocysteine lyase-cysteine sulfinate desulfinase | E | CsdB + NifS | 2.6 |
| 18279 | Superfamily I DNA and RNA helicases | L | UvrD | 1.53 |
| 31380 | N-formylmethionyl-tRNA deformylase | J | Def | 1.45 |
| 32033 | Ribosomal protein L10 | J | RplJ | 1 |
| 32197 | Predicted GTPases | R | 1 | |
| 32249 | Translation initiation factor 2 (IF-2; GTPase) | J | InfB | 1 |
| 32638 | Ribosomal protein L14 | J | RplN | 1 |
| 32928 | GTPases - translation elongation factors | J | TufB | 1.39 |
| 33119 | Tryptophanyl-tRNA synthetase | J | TrpS | 1.09 |
| 35629* | ABC-type transporters | 50.07 | ||
| * | more than one COG in this family | |||
| ** | full descriptions of functional classes can be found here http://www.ncbi.nlm.nih.gov/COG/ | |||
| *** | copy nr = average number of genes per strain | |||